An elephant ear gourami in aquarium looking at camera. It's very large freshwater fish . In the wild, the elephant ear gourami is found in the Mekong river basin of Thailand, Laos, and Cambodia. It is only known for certain from the middle part of the basin, from Kampong Cham Province (central Cambodia) to Sainyabuli Province (northern Laos).The closely related giant gourami (O. goramy) has been reported from the same section, but these records are likely misidentifications of elephant ear gouramis.In contrast, reports of elephant ear gouramis from the Mekong Delta are possibly misidentifications of giant gouramis. The only section of the Mekong basin where the giant gourami likely occurs naturally are in the southernmost part, like tributaries originating in the northern Cardamom Mountains.
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